AVOID AVOID AVOID!
First of all, it is illegal to do short-term rental / airbnb in any condos in Thailand. Almost all buildings have signs about it and you as the guest also has liability to it.
Second, this host is full of lies. He has unpaid fee to the building so the apartment he owns no longer has access to any of the amenities. When I contacted him to get this sorted, he lied again saying that he has contacted the juristic office about it but he didn't. When I went down there, you have to understand how embarrassing it is to get confronted by them.
Third, the smell of the flat is terrible, feels like some dead animals are there. Everything was so worn out and the cleaning was so bad as well. They didn't even change the sheets.
Last, the communication with him is simply impossible. He doesn't give you any clear instructions and you have to contact him a thousand times to get an answer.
So save yourself some time and energy, avoid this apartment and this host at all cost!